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Sep 20, 2019 · Learn 301+ things you should know in general knowledge, including topics such as world, sports, space, animals, countries, tech, health, and more. Test your knowledge with fun quizzes and trivia questions on various subjects.
Sep 8, 2021 · Science. Sep 8, 2021 1:16 PM. Everything You Need to Know About the Coronavirus. Here's all the WIRED coverage in one place, from how to keep your children entertained to how this...
May 6, 2022 · Black holes are some of the strangest and most fascinating objects in space. They're extremely dense, with such strong gravitational attraction that not even light can escape their grasp. The ...
- Science successfully explains natural phenomena through rational investigation and logical reasoning rather than by recourse to superstition and mysticism.
- When scientific disputes arise, the ultimate arbiter is not expert authority or common sense but experimental evidence, guided by theory. Tweet: Fits as is!
- Scientific theories are not “guesses” but are logically rigorous attempts to explain the observed facts of nature and to predict the results of new observations.
- When a theory’s predictions are confirmed, it becomes an essential tool in the further practice of science, but even good theories may someday be superseded by theories more comprehensive or more accurate.
- The human body has 12 systems. The human body's 12 systems work together to ensure that we stay alive, healthy, and thrive: The cardiovascular (or circulatory) system transports blood, oxygen, and nutrients throughout the body.
- There are four blood groups: A, B, AB, and O. Your lettered blood type is determined by which antibodies are in your plasma and which antigens are present in your red blood cells.
- Our DNA is stored in 23 pairs of chromosomes within the nucleus of every cell in our body. Every cell in your body, from your hair follicles to your toenails—has a full set of chromosomes, which contains all the genetic material needed to determine the makeup of our entire bodies.
- Our immune system fights off infection mostly through the use of antibodies and microphages. Upon detecting a pathogen, microphages (or white blood cells) will surround and immobilize it, literally consuming it with their bodies.
Nov 26, 2011 · Learn key concepts in biology, chemistry, physics, earth, and general science with this question-and-answer book. Written by an award-winning science writer and a seasoned educational trainer, it is perfect for kids, grown-ups, and anyone interested in gaining a better understanding of how science impacts everyday life.
Nov 3, 2023 · Guide. Flooding and Climate Change: Everything You Need to Know. More communities—both coastal and inland—are finding themselves underwater. Extreme weather, sea level rise, and other...
